Stable Manure And Bean Straw

What are the approximate contents of common stable manure; also, how
much of the above is contained in bean straw?

The composition of mixed stable manure is given as containing in one
ton: Nitrogen, 10 pounds; phosphoric acid, 5 pounds; potash, 10 pounds.
The constituents of bean straw in one ton, are given as: Nitrogen, 28
pounds; phosphoric acid, 6 pounds; potash, 38 pounds; Of course, a large
part of the difference in composition is due to the excessive amount of
moisture which ordinary stable manure contains. Air dried stable manure,
such as is found in a California corral, would have much higher
fertilizing value than such moist manure as an Eastern chemist would be
likely to handle.